Boron nitride (BN) exists in two forms. The first is a slippery solid formed from the
Chapter 10, Problem 10.134(choose chapter or problem)
Boron nitride (BN) exists in two forms. The first is a slippery solid formed from the reaction of BCl3 with NH3, followed by heating in an ammonia atmosphere at 7508C. Subjecting the first form of BN to a pressure of 85,000 atm at 18008C produces a second form that is the second hardest substance known. Both forms of BN remain solids to 30008C. Suggest structures for the two forms of BN
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